2840000

素因数分解:

$2^6\times 5^4\times {\mathrm{71}}^1$

素因数の和:103

約数の個数: 70

約数和(自身を含む): 7141464

約数和(自身を除く): 4301464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 125, 142, 160, 200, 250, 284, 320, 355, 400, 500, 568, 625, 710, 800, 1000, 1136, 1250, 1420, 1600, 1775, 2000, 2272, 2500, 2840, 3550, 4000, 4544, 5000, 5680, 7100, 8000, 8875, 10000, 11360, 14200, 17750, 20000, 22720, 28400, 35500, 40000, 44375, 56800, 71000, 88750, 113600, 142000, 177500, 284000, 355000, 568000, 710000, 1420000, 2840000]

約数ペア:

[(1, 2840000), (2, 1420000), (4, 710000), (5, 568000), (8, 355000), (10, 284000), (16, 177500), (20, 142000), (25, 113600), (32, 88750), (40, 71000), (50, 56800), (64, 44375), (71, 40000), (80, 35500), (100, 28400), (125, 22720), (142, 20000), (160, 17750), (200, 14200), (250, 11360), (284, 10000), (320, 8875), (355, 8000), (400, 7100), (500, 5680), (568, 5000), (625, 4544), (710, 4000), (800, 3550), (1000, 2840), (1136, 2500), (1250, 2272), (1420, 2000), (1600, 1775)]